Apparatus for generating oxygen.



4 I PATBNTED'OGT. 15, 1907 R. VON PORBGGER. I

APPARATUS FOR GENERATING OXYGEN.

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1 H 14 e we a A PATENTED OCT. 15, 1907. R. VON FORBGGER.

APPARATUS FOR GENERATING OXYGEN.

APPLIOATIOK FILED FEB. 0,1906. 7

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(:2; 351 M Gttozncu b UNITED STATES PATENT OFFICE.

RICHARD NON FOREGGER, OF NEW YORK, N. Y., ASSIGNOR TO THE ROESSLER &HASSLACHER CHEMICAL COMPANY, OF NEW YORK, N. Y., A CORPORATION.

APPARATUS son esimna'rme OXYGEN.

Specification of Letters Patent Patented Oct. 15, 1907.

Application filed February s, 1906. serial No. 300,068.

To all whom it may concern:

lowing is a specification.

My invention relates to an apparatus for the instantaneous generation ofoxygen gas from a suitable chemical compound.

Ilcretofore oxygen gas has been produced by various processes whereinthe use of machinery has been. necessary. Said machinery has, moreover,not been portable, but has been so large and massive that it was noteasily moved. The oxygen produced thereby could mup to the present onlybe had in heavy cylinders in a compressed state, said cylinders havingthe disadvantage of being clumsy in handling and of storing the gasunder high pressure, hence making it liable to losses and to explode.

By the practice of my invention every user of oxygen gas will be enabledto produce the same at will instantaneously and without danger ortrouble, the gas produced being under low pressure and hence not subjectto the danger of losses or liability of explosion as heretofore.

In the following I have described, in connection with the accompanyingdrawings, a construction illustrating one form of my invention, thefeatures thereof being more particularly pointed out hercinaftr in theclaims.

In the drawings, Figure 1 is a side elevation of an apparatusillustrating one form of my invention, and Fig. 2 is a plan view of Fig.1; Fig. 3 is a vertical sectional view on the line AB of Fig. 1, andFig. 4 is acrosssectional view on the line C-D of Fig. 3.

Similar numerals of reference indicate similar parts throughout theseveral views.

1 indicates an outer container, adapted to contain water, preferablycomprising an .outer wall 2, an inner wall 3 and a bottom 4.- A filling5 of asbestos, or other suitable heat absorbing material, may bedisposed intermediate the walls 2 and 3 of the container 1.

6 is a flanged ring provided with suitable screw threaded openings 7, 7to receive clamping screws 8,. 8, as hereinafter described, and adaptedto be fastened to the top of the container 1 by means of screws 9, 9passing through the container and the downwardly projecting portion 10of the flanged ring 6.

11 is an inner container or holder comprising a cylinder 12, preferablymade of caustic proof material, pro-' vided at its lower end with aremovable spring support 13 adapted to hold cartridges 14, 14 in place,eachof cap 18 to which it may bebrazed as at 19.

contents of the cartridges. The contents of the cartridges comprise achemical adapted to produce oxygen gas by its reaction with a liquidsuch as water. As such chemical I prefer to use fused sodium peroxid.Container 11 is closed at the top by means of a flanged Cap 18isprovided with a pipe or neck 20 internally screw threaded at its upperend, as at 21, to receive a needle valve 22, mounted upon a suitableremovable cover 23, said cover being clamped between the needle valveand the top of the pipe or neck, as shown in Fig. 3. Cover 23 ispreferably provided with adownwardly projecting portion 24 adapted tofit within ring 6.

tight closure. Cover 23 is provided with a second valve 26 adapted forcommunication with atmospheric air. Needle valve 22 is provided with anipple 27 for receiving a'suitable rubber tubing attachment if de sired.Cover 23 is also preferably provided with key ways 28 adapted to permitthe cover to be'put in place without removing the clamping screws 8, 8.The cover the latter is preferably two-thirds filled with water.

One or more cartridges 14 are then placed in the inner container 11 andthe same is replaced in the container 1, theneedle valve: 22 and thevalve 26 being both closed. No generation of oxygen will take place whenthe apparatus is in this conditionready for use. The

generation, however, will start instantaneously when both the needlevalve 22 and the valve 26 are openedf The water level in the innercontainer 11, before the beginning of the generation of gas, is belowthe bottom of the lowermost cartridge, on account of the air pressure insaid container. As soon as the valves 22 and 26 are opened the waterwill rise until it comes in contact with the chemical which is to bedecomposed thereby. As a result of this contact the generation of gasstarts at once, creating an overpressure in container 11 which willresult in the prevention of the further rising of water in the saidcontainer. willthen only rise gradually according to the degree in whichthe chemical is being decomposed so that several packages of chemicalsare provided, one above the other, the upper ones remaining perfectlydry and unused until the lower ones are' entirely used up. It is obviousthat the pressure in container 1 maybe regulated by opening valve 26more or less, according to the pressure desired. If it is desired tostop the generation The water in container 11 of gas the valve 26 isfirst closed in order to prevent the outside air from entering into thecontainer 1 thus causing a lower pressure of air in said container. Theresult will be that the overpressure in container 11 will now preventthewater from rising any further, and if the valve 22 is then closed,the generation of gas is at once stopped. The apparatus may be kept inthis partly discharged and partly charged condition for several weeksand at any time upon opening the valves the generation of gas can beimmediately caused. Such apparatus, as is obvious, may be portable andwill be of use for physicians and hospitals, and will especially enablethe country doctor to have his own supply of oxygen gas at any time andplace desired independent of the possibility of obtaining compressedoxygen in heavy cylinders. The apparatus may also, be used inlaboratories and for certain metallurgical processes, as for autogeneouswelding, at such places where oxygen gas is not procurable in any otherform. It is obvious that the details of construction of the apparatusand the size and arrangement of parts may be widely varied withoutdepartingirom the spirit of my invention, and I .do not restrict myselfto any of the details as shown and described.

What I claim and desire to secure by Letters Patent of the United Statesis: I

1 A portable gas generating apparatus including a container, an invertedbell suspended therein having openings only at the top and bottomthereof, a port directly'connecting the container with the atmosphereand a conduit connecting the bell with the gas discharge, in combinationwith a cartridge containing gas producing material mounted in the belland adapted to be perforated top and bottom so as to permit water tocontact with the material at the bottom of the cartridge and gas toescape out of the top thereof into the bell and thence through the gasdischarge conduit.

senses 2. A portable gas generating apparatus including acoutainer,double walls in said container with n layer of bout insulating materialbetween them, an inverted boil suspended in said container havingopenings only at the top and bottom thereof, a port directly connectingthe com tainer with the atmosphere a conduit connecting the hell withthe gas discharge, in combination with a cartridge. containing gasproducing material mounted in the bell and adapted to be perforated topand bottom so as to permit water to contact with the material at thebottom of the cartridge and gas to escape out of the top tin-root intothe be'ii and thence through the gas discharge conduit.

3. A portable gas generating apparatus including a container, aninverted bell suspended therein having openings only at the top andbottom thereof, a port directly connecting the container with theatmosphere and :1 conduit connecting the bell with the gas discharge andvulves for controlling said port and conduit. in combination with acartridge containing-gas producing material mounted in the hell andadapted to be perforated top and bottom so us to permit water to contactwith the material at the bottom of the cartridge and gas to escape outof ihe top ihori-of into the bell and thence through the gas dischargeconduit.

4. A portable gas generating apparatus including :1 container, aninverted bell suspended therein having openings only at the top'andbottom thereof. a port directly cunnccting the container with theatmosphere and :1 conduit connecting the'bell with the gas discharge, incombination with a plurality of cartridges ouch containing galsproducing material and mounted one above the other in the bell, eachbeing adapted to be perforated top and bottom so as to permit water tocontact with the lnnlcriui at the bottom of the cartridge and gas toescape out of the top thereof into the bell and thence through the gasdischarge conduit.

In witness whereof I have hereunto signed my name in the presence of twosubscribing wituesses.

RICHARD VON FOR EGG ER.

Witnesses J. GALLYITZ, R. W. Asunnrs.

